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Spirit At Arad

by Staff Writers
Pasadena CA (JPL) Jan 19, 2006
Spirit is healthy and is driving as efficiently as possible toward "Home Plate." On the way to Home Plate, Spirit stopped to look at "Arad," where scientists encountered a cluster of white, powdery soil. Researchers decided to stop for a few days and use the robotic arm to conduct some measurements on it. Results are expected soon.

Sol-by-sol summaries

Sol 715 (Jan. 6, 2006): Spirit performed untargeted remote sensing.

Sol 716: Spirit drove 54 meters (177 feet), using a combination of commanded and autonomous navigation.

Sol 717: Spirit drove only 1.38 meters (4.5 feet) on slippery terrain, experiencing slippage of 80 percent as the wheels were turning.

Sol 718: Spirit conducted untargeted remote sensing.

Sol 719: Spirit drove 9.3 meters (30.5 feet). The rover stopped when the slip rate of its wheels exceeded 80 percent in an area of sandy, unfamiliar terrain.

Sol 720: Spirit conducted untargeted remote sensing and atmospheric studies.

Sol 721: Spirit adjusted position to place the robotic arm next to Arad for a weekend of scientific measurements. The rover also used its panoramic camera and miniature thermal emission spectrometer to take images of targets called "Arad1" and "Arad2."

Sol 722: Spirit conducted untargeted remote sensing and took panoramic camera images of tracks created by the rover's wheels.

As of sol 722 (Jan. 14, 2006), Spirit's total odometry was 6,096 meters (3.79 miles).

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Martian Snow Source of Tropical Glaciers, Research Team Reports
Providence RI (SPX) Jan 20, 2006
Snow is the source of glacial deposits found at the base of the majestic volcanoes and mountains dotting the mid-latitude and tropical regions of Mars. Based on an innovative blend of geological observations and climate modeling created by a team of American and French scientists, the finding appears in Science.

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